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SHEET / CSV

Spreadsheet to CSV

Read XLS, XLSX, XLSM, XLSB, ODS, or CSV and download any selected sheet as CSV.

Compatibility note

CSV contains one sheet at a time; formulas export their stored results and macros never execute.

Drop a file or choose from your device

CSV contains one sheet at a time; formulas export their stored results and macros never execute.

No file upload; close the tab to clear working content.

GUIDE / FAQ

How to use Spreadsheet to CSV

Convert a selected worksheet from Excel, OpenDocument, or CSV files into UTF-8 CSV.

How to use it

  1. Choose XLS, XLSX, XLSM, XLSB, ODS, or CSV.
  2. Select a worksheet and preview its data.
  3. Download UTF-8 CSV.

Compatibility and privacy

Switch sheets before exporting. Formulas are not recalculated; the parser uses values stored in the file, and macros never run.

✓ Documents stay in browser memory and are never uploaded.

Frequently asked questions

Why does CSV contain only one worksheet?

CSV has no worksheet concept. Select and download each sheet separately.

Are formulas recalculated?

No. The tool reads the last stored values and never executes untrusted formulas or macros.